JPS6319772A - Lead-acid battery - Google Patents

Lead-acid battery

Info

Publication number
JPS6319772A
JPS6319772A JP61164909A JP16490986A JPS6319772A JP S6319772 A JPS6319772 A JP S6319772A JP 61164909 A JP61164909 A JP 61164909A JP 16490986 A JP16490986 A JP 16490986A JP S6319772 A JPS6319772 A JP S6319772A
Authority
JP
Japan
Prior art keywords
fine powder
powder
lead
separator
electrode plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61164909A
Other languages
Japanese (ja)
Inventor
Seiji Kamiharashi
征治 上原子
Hiroyuki Jinbo
裕行 神保
Keiko Naruse
成瀬 圭子
Sadao Fukuda
貞夫 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP61164909A priority Critical patent/JPS6319772A/en
Publication of JPS6319772A publication Critical patent/JPS6319772A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/431Inorganic material
    • H01M50/434Ceramics
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/431Inorganic material
    • H01M50/434Ceramics
    • H01M50/437Glass
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/44Fibrous material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00Electrolytes
    • H01M2300/0002Aqueous electrolytes
    • H01M2300/0005Acid electrolytes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cell Separators (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To retard self discharge after a lengthy time of storage to increase a capacity retention rate and to increase a recovery rate after charge by adding fine absorbing powder and/or fine hydrophilic powder to a negative plate, and applying the same material onto the surface of a glass mat serving as separator and filling in its inside. CONSTITUTION:Fine absorbing powder and/or fine hydrophilic powder are/is added to a negative plate together with fine conductive powder, and applied onto the surface of a glass mat serving as separator and filled in its inside. The adding amount to the negative plate is 0.01-3.0% of the total active material weight. As the absorbing powder, zeolite is used. As the hydrophilic powder, SiO2, Al2O3, TiO2, or oxide of rare earth element is selected. Carbon is used as the fine conductive powder. The coating and filling amount to the separator is 30g/m<2> or less. Mean particle size of these three powder is 200mum.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は鉛蓄電池の保存特性の向上に関するものである
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improving the storage characteristics of lead-acid batteries.

従来の技術 従来の鉛蓄電池用負極板は、鉛又は鉛合金を鋳造あるい
はエキスバンド加工などに上り集電体格子を作成し、こ
の集電体に主成分が酸化鉛よりなる活物質原料を塗着、
乾燥しついで化成して極板としていた。
Conventional technology A conventional negative electrode plate for a lead-acid battery is produced by casting or expanding lead or a lead alloy to create a current collector grid, and then coating this current collector with an active material whose main component is lead oxide. Arrival,
After drying, it was chemically converted into electrode plates.

ここでの活物質原料は酸化鉛を主体とする鉛粉と硫酸と
水を混合し練合したもので、機械的強度を改善するため
に耐酸性の合成樹脂繊維を添加したものである。
The active material raw material here is a mixture of lead powder, mainly lead oxide, sulfuric acid, and water, and acid-resistant synthetic resin fibers are added to improve mechanical strength.

またその他の添加剤として、硫酸バリウム、リプニンス
ルホン酸ナトリウムなどがあるのみである。
Other additives include barium sulfate and sodium lipninsulfonate.

発明が解決しようとする問題点 しかし、これらの添加剤のみでは近年発展の著しい密閉
形の鉛蓄電池、すなわち電解液量が少なく制限された電
池に要求される負極板の親水性および吸液性は不充分で
あった。
Problems to be Solved by the Invention However, these additives alone cannot meet the hydrophilicity and liquid absorption properties of the negative electrode plate required for sealed lead-acid batteries, which have been rapidly developed in recent years, that is, batteries with a small and limited amount of electrolyte. It was insufficient.

またセパレータに対しても特に負極板に電解液が供給さ
れやすい特性を付与したものはなかった。
In addition, there has been no separator that has characteristics that allow the electrolyte to be easily supplied to the negative electrode plate.

問題点を解決するだめの手段 本発明は負極用活物質ペーストに所定の吸液性の微粉末
、親水性の微粉末のいずれか一方あるいはこれらの混合
物の一定量と、この添加剤によって低下する粒子間およ
び活物質と格子界面の導電性を補なうだめの導電性微粉
末の一定量を添加し、親水性、吸液性の向上を図った負
極板と、この負極板と接するセパレータ表面に親水性微
粉末、吸液性微粉末のいずれか一方あるいはこれらの混
合物を塗布、充填してセパレータとの接触率の向上を図
り、負極板の電解液充填率の低下による問題点を解決し
たことを特徴とした鉛蓄電池である。
Means to Solve the Problems The present invention provides negative electrode active material paste with a certain amount of either a predetermined liquid-absorbing fine powder, a hydrophilic fine powder, or a mixture thereof, and this additive. A negative electrode plate with a certain amount of conductive fine powder added to compensate for the conductivity between particles and at the interface between the active material and the lattice to improve hydrophilicity and liquid absorption, and the separator surface in contact with this negative electrode plate. By coating and filling either hydrophilic fine powder, liquid-absorbing fine powder, or a mixture thereof into the electrode, the contact rate with the separator was improved, and the problem caused by the decrease in the electrolyte filling rate of the negative electrode plate was solved. This is a lead-acid battery with the following characteristics.

作用 本発明による鉛蓄電池は、負極板の吸液性、親水性が向
上するとともに、電解液を最も多く含むセパレータとの
接触面積が向上するため、長期保存中に電解液中の水分
が電槽壁を通して大気中に拡散し減少して電解液量が所
定量より減少した場合においてもセパレータから電解液
の供給を受けやすいため、長期保存後の問題点の1つで
ある負極板中の電解液の充填率の低下による容量の低下
を抑制することが出来る。
In the lead-acid battery according to the present invention, the liquid absorbency and hydrophilicity of the negative electrode plate are improved, and the contact area with the separator containing the largest amount of electrolyte is improved, so that water in the electrolyte is absorbed into the battery during long-term storage. Even if the amount of electrolyte decreases below a predetermined amount due to diffusion through the wall into the atmosphere, it is easy to receive electrolyte from the separator, which is one of the problems after long-term storage. It is possible to suppress a decrease in capacity due to a decrease in filling rate.

実施例 以下、本発明の一実施例を説明する。従来の正極板、負
極板およびセパレータを用いて製作した電池をムとし、
親水性の微粉末として平均粒径が15mμのSiO2、
Al2O3、TiO2を添加した負極板および平均粒径
が15mμのSiO2、Al2O3、TiO2をガラス
マット表面に10g///塗布したセパレータと従来の
正極板を用いて製作した電池をBとして、電圧12v、
容量2,0ムhの電池を製作した。
EXAMPLE An example of the present invention will be described below. The battery is manufactured using conventional positive electrode plates, negative electrode plates, and separators.
SiO2 with an average particle size of 15 mμ as a hydrophilic fine powder,
B is a battery manufactured using a negative electrode plate containing Al2O3 and TiO2, a separator in which 10 g of SiO2, Al2O3, and TiO2 with an average particle size of 15 mμ is coated on the glass mat surface, and a conventional positive electrode plate.
A battery with a capacity of 2.0 μh was manufactured.

この電池の製作条件については上記以外は同一条件で実
施した。
This battery was manufactured under the same conditions except for the above.

製作した電池の初期容量および常温で2年間放置した後
に容量の残存率と充電後の回復率の評価を行った。その
結果を次表に示す。
The initial capacity of the manufactured battery, the remaining capacity after being left at room temperature for two years, and the recovery rate after charging were evaluated. The results are shown in the table below.

なお、充電条件は次の通りである。Note that the charging conditions are as follows.

1)充電条件:充電電流”800mA 設定電圧=14,7v 充電時間26時間 2)放電条件:放電電流=1.OA カット電圧=10.5V 発明の効果 表に示したように本発明を密閉形鉛蓄電池に適用するこ
とにより、長期保存後の自己放電を抑制し、残存率を高
めるとともに充電後の回復率を大幅に向上させることが
出来るものである。
1) Charging conditions: Charging current 800mA Set voltage = 14.7V Charging time 26 hours 2) Discharging conditions: Discharging current = 1.OA Cut voltage = 10.5V As shown in the effect table of the invention, the present invention was applied to a sealed type. By applying it to lead-acid batteries, it is possible to suppress self-discharge after long-term storage, increase the survival rate, and significantly improve the recovery rate after charging.

Claims (5)

【特許請求の範囲】[Claims] (1)正極板、負極板、セパレータおよび電解液から構
成される鉛蓄電池であって、前記負極板に吸液性微粉末
、親水性微粉末を単独あるいは混合物で添加するととも
にさらに導電性微粉末を単独あるいは混合物で添加した
負極板と、セパレータとして使用するガラスマットの表
面および内部に上記の吸液性微粉末と親水性微粉末を単
独あるいは混合物で塗布、充填したことを特徴とする鉛
蓄電池。
(1) A lead-acid battery consisting of a positive electrode plate, a negative electrode plate, a separator, and an electrolyte, in which a liquid-absorbing fine powder and a hydrophilic fine powder are added alone or in a mixture to the negative electrode plate, and in addition, a conductive fine powder is added to the negative electrode plate. A lead-acid battery comprising: a negative electrode plate to which is added either singly or in a mixture; and a glass mat used as a separator, on the surface and inside of which the above-mentioned liquid-absorbing fine powder and hydrophilic fine powder are applied and filled either singly or as a mixture. .
(2)負極板の添加剤である吸液性微粉末、親水性微粉
末および導電性微粉末の添加量が重量比で活物質総量の
0.01〜3.0%である特許請求の範囲第1項記載の
鉛蓄電池。
(2) A claim in which the amount of liquid-absorbing fine powder, hydrophilic fine powder, and conductive fine powder, which are additives of the negative electrode plate, is 0.01 to 3.0% by weight of the total amount of active materials. The lead-acid battery described in paragraph 1.
(3)吸液性の微粉末がゼオライトであり、親水性の微
粉末がSiO_2、Al_2O_3、TiO_2および
希土類元素の酸化物からなる群のいずれかであり、導電
性の微粉末がカーボンであることを特徴とする特許請求
の範囲第1項記載の鉛蓄電池。
(3) The liquid-absorbing fine powder is zeolite, the hydrophilic fine powder is one of the group consisting of SiO_2, Al_2O_3, TiO_2 and rare earth element oxides, and the conductive fine powder is carbon. A lead-acid battery according to claim 1, characterized in that:
(4)セパレータのガラスマットに対する塗布量、充填
量が30g/m^2以下である特許請求の範囲第1項記
載の鉛蓄電池。
(4) The lead-acid battery according to claim 1, wherein the coating amount and filling amount of the separator to the glass mat is 30 g/m^2 or less.
(5)吸液性微粉末、親水性微粉末および導電性微粉末
の粒径が平均200μm以下である特許請求の範囲第1
項記載の鉛蓄電池。
(5) Claim 1, in which the liquid-absorbing fine powder, the hydrophilic fine powder, and the conductive fine powder have an average particle size of 200 μm or less.
Lead-acid batteries as described in section.
JP61164909A 1986-07-14 1986-07-14 Lead-acid battery Pending JPS6319772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61164909A JPS6319772A (en) 1986-07-14 1986-07-14 Lead-acid battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61164909A JPS6319772A (en) 1986-07-14 1986-07-14 Lead-acid battery

Publications (1)

Publication Number Publication Date
JPS6319772A true JPS6319772A (en) 1988-01-27

Family

ID=15802165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61164909A Pending JPS6319772A (en) 1986-07-14 1986-07-14 Lead-acid battery

Country Status (1)

Country Link
JP (1) JPS6319772A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326504A (en) * 1991-04-25 1992-11-16 Elna Co Ltd Electric double layer capacitor
JPH04338623A (en) * 1991-05-15 1992-11-25 Elna Co Ltd Electric double layer capacitor
JPH07240348A (en) * 1994-02-28 1995-09-12 Nec Corp Electrical double layer capacitor
GB2305772A (en) * 1995-09-28 1997-04-16 Kenichi Fujita Addition of carbon suspension obtained by electrolytic oxidation of carbon to lead-acid battery electrolyte activates electrodes when charged
EP0821422A3 (en) * 1996-07-23 2000-07-05 Matsushita Electric Industrial Co., Ltd. Sealed lead-acid battery
CN1078753C (en) * 1995-09-29 2002-01-30 藤田贤一 Electrolyte and lead accumulator using the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326504A (en) * 1991-04-25 1992-11-16 Elna Co Ltd Electric double layer capacitor
JPH04338623A (en) * 1991-05-15 1992-11-25 Elna Co Ltd Electric double layer capacitor
JPH07240348A (en) * 1994-02-28 1995-09-12 Nec Corp Electrical double layer capacitor
GB2305772A (en) * 1995-09-28 1997-04-16 Kenichi Fujita Addition of carbon suspension obtained by electrolytic oxidation of carbon to lead-acid battery electrolyte activates electrodes when charged
GB2305772B (en) * 1995-09-28 1998-09-16 Kenichi Fujita Electrolyte solution and lead-acid batteries using the same
CN1078753C (en) * 1995-09-29 2002-01-30 藤田贤一 Electrolyte and lead accumulator using the same
EP0821422A3 (en) * 1996-07-23 2000-07-05 Matsushita Electric Industrial Co., Ltd. Sealed lead-acid battery
US6492059B1 (en) 1996-07-23 2002-12-10 Matsushita Electric Industrial Co., Ltd. Separator for sealed lead-acid battery
US7132195B2 (en) 1996-07-23 2006-11-07 Matsushita Electric Industrial Co., Ltd. Separator for sealed lead-acid battery

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